Studies concerning the causal relationship between biodiversity and disease emergence in an environment are focused on testing the “dilution effect”, which parasitologists refer to as a “decoy-effect” hypothesis ( Combes & Moné, 1987 Johnson & Thieltges, 2010). (2009) as well as many others underlined that rapid loss of populations significantly increase disease emergence. Different authors indicate the strong correlation between parasite success in ecosystems and the biodiversity of ecological communities ( Johnson et al., 2012 Lagrue & Poulin, 2015). Our results show that a non–host snail population has the potential to interfere with the transmission of a trematode via suitable snail hosts.īiodiversity loss and disease emergence have become two of the most challenging issues confronting science and society ( Johnson et al., 2009). regenti miracidia under experimental conditions makes the infestation ineffective. antipodarum influences the infestation of the intermediate host Radix balthica (a native lymnaeid) by the bird schistosome Trichobilharzia regenti. As a pilot study on this topic, we have carried out a laboratory experiment on how P. The caenogastropod Potamopyrgus antipodarum-an alien in Europe-could be a good candidate against swimmer’s itch because of its apparent resistance to invasion by European bird schistosome species and its high population density. One of the natural methods to reduce the presence of cercariae in the environment could lie in the introduction of non–host snail species to the ecosystem, which is known as the “dilution” or “decoy” effect. Even if cercariae fail after penetrating the human skin, they can cause dangerous symptoms in atypical mammal hosts. Swimmer’s itch is a re-emerging human disease caused by bird schistosome cercariae, which can infect bathing or working people in water bodies. Potamopyrgus antipodarum as a potential defender against swimmer’s itch in European recreational water bodies-experimental study. Cite this article Marszewska A, Cichy A, Bulantová J, Horák P, Żbikowska E. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. Licence This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. 2 Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic DOI 10.7717/peerj.5045 Published Accepted Received Academic Editor Kenneth De Baets Subject Areas Ecology, Parasitology, Zoology, Public Health, Freshwater Biology Keywords Potamopyrgus antipodarum, Radix balthica, Trichobilharzia regenti, Miracidia, “Decoy effect” Copyright © 2018 Marszewska et al.
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